1 files changed, 183 insertions, 0 deletions
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/RunExternalScriptTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/RunExternalScriptTest.java
new file mode 100644
index 0000000000..2d38c05c76
--- /dev/null
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/RunExternalScriptTest.java
@@ -0,0 +1,183 @@
+/*
+ * Copyright (C) 2015, Christian Halstrick <christian.halstrick@sap.com> and others
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Distribution License v. 1.0 which is available at
+ * https://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+package org.eclipse.jgit.util;
+
+import static java.nio.charset.StandardCharsets.UTF_8;
+import static org.junit.Assert.assertEquals;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+
+import org.eclipse.jgit.junit.JGitTestUtil;
+import org.eclipse.jgit.util.FS.ExecutionResult;
+import org.junit.Before;
+import org.junit.Test;
+
+public class RunExternalScriptTest {
+	private static final String LF = "\n";
+
+	private ByteArrayOutputStream out;
+
+	private ByteArrayOutputStream err;
+
+	@Before
+	public void setUp() throws Exception {
+		out = new ByteArrayOutputStream();
+		err = new ByteArrayOutputStream();
+	}
+
+	@Test
+	public void testCopyStdIn() throws IOException, InterruptedException {
+		String inputStr = "a\nb\rc\r\nd";
+		File script = writeTempFile("cat -");
+		int rc = FS.DETECTED.runProcess(
+				new ProcessBuilder("sh", script.getPath()), out, err,
+				new ByteArrayInputStream(inputStr.getBytes(UTF_8)));
+		assertEquals(0, rc);
+		assertEquals(inputStr, new String(out.toByteArray(), UTF_8));
+		assertEquals("", new String(err.toByteArray(), UTF_8));
+	}
+
+	@Test
+	public void testCopyNullStdIn() throws IOException, InterruptedException {
+		File script = writeTempFile("cat -");
+		int rc = FS.DETECTED.runProcess(
+				new ProcessBuilder("sh", script.getPath()), out, err,
+				(InputStream) null);
+		assertEquals(0, rc);
+		assertEquals("", new String(out.toByteArray(), UTF_8));
+		assertEquals("", new String(err.toByteArray(), UTF_8));
+	}
+
+	@Test
+	public void testArguments() throws IOException, InterruptedException {
+		File script = writeTempFile("echo $#,$1,$2,$3,$4,$5,$6");
+		int rc = FS.DETECTED.runProcess(
+				new ProcessBuilder("sh",
+				script.getPath(), "a", "b", "c"), out, err, (InputStream) null);
+		assertEquals(0, rc);
+		assertEquals("3,a,b,c,,,\n", new String(out.toByteArray(), UTF_8));
+		assertEquals("", new String(err.toByteArray(), UTF_8));
+	}
+
+	@Test
+	public void testRc() throws IOException, InterruptedException {
+		File script = writeTempFile("exit 3");
+		int rc = FS.DETECTED.runProcess(
+				new ProcessBuilder("sh", script.getPath(), "a", "b", "c"),
+				out, err, (InputStream) null);
+		assertEquals(3, rc);
+		assertEquals("", new String(out.toByteArray(), UTF_8));
+		assertEquals("", new String(err.toByteArray(), UTF_8));
+	}
+
+	@Test
+	public void testNullStdout() throws IOException, InterruptedException {
+		File script = writeTempFile("echo hi");
+		int rc = FS.DETECTED.runProcess(
+				new ProcessBuilder("sh", script.getPath()), null, err,
+				(InputStream) null);
+		assertEquals(0, rc);
+		assertEquals("", new String(out.toByteArray(), UTF_8));
+		assertEquals("", new String(err.toByteArray(), UTF_8));
+	}
+
+	@Test
+	public void testStdErr() throws IOException, InterruptedException {
+		File script = writeTempFile("echo hi >&2");
+		int rc = FS.DETECTED.runProcess(
+				new ProcessBuilder("sh", script.getPath()), null, err,
+				(InputStream) null);
+		assertEquals(0, rc);
+		assertEquals("", new String(out.toByteArray(), UTF_8));
+		assertEquals("hi" + LF, new String(err.toByteArray(), UTF_8));
+	}
+
+	@Test
+	public void testAllTogetherBin() throws IOException, InterruptedException {
+		String inputStr = "a\nb\rc\r\nd";
+		File script = writeTempFile("echo $#,$1,$2,$3,$4,$5,$6 >&2 ; cat -; exit 5");
+		int rc = FS.DETECTED.runProcess(
+				new ProcessBuilder("sh", script.getPath(), "a", "b", "c"),
+				out, err, new ByteArrayInputStream(inputStr.getBytes(UTF_8)));
+		assertEquals(5, rc);
+		assertEquals(inputStr, new String(out.toByteArray(), UTF_8));
+		assertEquals("3,a,b,c,,," + LF, new String(err.toByteArray(), UTF_8));
+	}
+
+	@Test(expected = IOException.class)
+	public void testWrongSh() throws IOException, InterruptedException {
+		File script = writeTempFile("cat -");
+		FS.DETECTED.runProcess(
+				new ProcessBuilder("/bin/sh-foo", script.getPath(), "a", "b",
+						"c"), out, err, (InputStream) null);
+	}
+
+	@Test
+	public void testWrongScript() throws IOException, InterruptedException {
+		File script = writeTempFile("cat-foo -");
+		int rc = FS.DETECTED.runProcess(
+				new ProcessBuilder("sh", script.getPath(), "a", "b", "c"),
+				out, err, (InputStream) null);
+		assertEquals(127, rc);
+	}
+
+	@Test
+	public void testCopyStdInExecute()
+			throws IOException, InterruptedException {
+		String inputStr = "a\nb\rc\r\nd";
+		File script = writeTempFile("cat -");
+		ProcessBuilder pb = new ProcessBuilder("sh", script.getPath());
+		ExecutionResult res = FS.DETECTED.execute(pb,
+				new ByteArrayInputStream(inputStr.getBytes(UTF_8)));
+		assertEquals(0, res.getRc());
+		assertEquals(inputStr,
+				new String(res.getStdout().toByteArray(), UTF_8));
+		assertEquals("", new String(res.getStderr().toByteArray(), UTF_8));
+	}
+
+	@Test
+	public void testStdErrExecute() throws IOException, InterruptedException {
+		File script = writeTempFile("echo hi >&2");
+		ProcessBuilder pb = new ProcessBuilder("sh", script.getPath());
+		ExecutionResult res = FS.DETECTED.execute(pb, null);
+		assertEquals(0, res.getRc());
+		assertEquals("", new String(res.getStdout().toByteArray(), UTF_8));
+		assertEquals("hi" + LF,
+				new String(res.getStderr().toByteArray(), UTF_8));
+	}
+
+	@Test
+	public void testAllTogetherBinExecute()
+			throws IOException, InterruptedException {
+		String inputStr = "a\nb\rc\r\nd";
+		File script = writeTempFile(
+				"echo $#,$1,$2,$3,$4,$5,$6 >&2 ; cat -; exit 5");
+		ProcessBuilder pb = new ProcessBuilder("sh", script.getPath(), "a",
+				"b", "c");
+		ExecutionResult res = FS.DETECTED.execute(pb,
+				new ByteArrayInputStream(inputStr.getBytes(UTF_8)));
+		assertEquals(5, res.getRc());
+		assertEquals(inputStr,
+				new String(res.getStdout().toByteArray(), UTF_8));
+		assertEquals("3,a,b,c,,," + LF,
+				new String(res.getStderr().toByteArray(), UTF_8));
+	}
+
+	private File writeTempFile(String body) throws IOException {
+		File f = File.createTempFile("RunProcessTestScript_", "");
+		JGitTestUtil.write(f, body);
+		return f;
+	}
+}